This is one of my favorite blog posts of all time. It's applicable not only to just work work but a lot of other things, if you can shorten the feedback loop, you get a much better chance to improve the end result. It affects _everything_ else too.
Say you want to become a better writer. That's a broad goal and there are several approaches you could take towards that goal. On one extreme, you could read a lot about writing, write little, try to perfect things, and get something out once or twice a month. On the other extreme, you may write every single day and get it out in front of some people, get consistent feedback, learn, and improve. Both of these approaches will take time… the second approach, with the shorter feedback loop, can probably get you there faster though.